vec4 triplanarTexture( sampler2D sampler, vec3 weights, vec3 triplanerPosition )
{
  vec4 sample = vec4( 0.0 );

	sample += texture( sampler, triplanerPosition.xy ) * weights.z;
	sample += texture( sampler, triplanerPosition.xz ) * weights.y;
	sample += texture( sampler, triplanerPosition.zy * vec2( -1.0, 1.0 ) ) * weights.x;

	return sample;
}